CN101200259B - Braking device for holding and braking a lift cabin in a lift facility and method for holding and braking a lift facility - Google Patents
Braking device for holding and braking a lift cabin in a lift facility and method for holding and braking a lift facility Download PDFInfo
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- CN101200259B CN101200259B CN2007101933203A CN200710193320A CN101200259B CN 101200259 B CN101200259 B CN 101200259B CN 2007101933203 A CN2007101933203 A CN 2007101933203A CN 200710193320 A CN200710193320 A CN 200710193320A CN 101200259 B CN101200259 B CN 101200259B
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- 238000000034 method Methods 0.000 title claims abstract description 8
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- 230000001105 regulatory effect Effects 0.000 claims description 25
- 230000003068 static effect Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 14
- 238000012797 qualification Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 3
- 230000006835 compression Effects 0.000 description 60
- 238000007906 compression Methods 0.000 description 60
- 238000012423 maintenance Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Brake equipment for holding and braking a lift cage in a lift installation and a method of holding and braking a lift installation Brake equipment for holding and braking a lift cage in a lift installation, which is arranged to be movable relative to a brake track (1) along this brake track (1) in two directions of travel, comprises a mount (13) with a brake lining (2, 5) which automatically adjusts under friction couple with the brake track (1) on movement of the lift cage relative to the rail and in that case tightens a first tightening means (3), which can be released by an actuator (4). The first tightening means (3) tightens the mount (13) together with the brake lining (2) against the brake track (1) by a biasing force. The brake equipment produces, with unmoved brake equipment and unreleased state of the actuator (4), a holding force acting in both directions of travel. The holding force is in that case determined substantially by the biasing force acting on the mount.
Description
Technical field
The present invention relates to a kind of braking equipment and cooresponding method thereof that keeps and brake the lift car of lift facility.Lift facility comprises lift car, and lift car is arranged to along the one or more tracks in the lift well removable on above-below direction.Lift car is driven directly or indirectly by bracing or strutting arrangement in this case, and lift car is braked equipment maintenance and fixing.Usually, lift car also comprises counterweight, and counterweight is connected with lift car by bracing or strutting arrangement.The weight of counterweight part ground compensating elevator car.
Background technology
In the operation of this lift facility, must consider to take three kinds of different braking schemes: car remains on the floor station; The not deceleration of car under the damage situation of bracing or strutting arrangement (below be also referred to as promptly stop); The deceleration of car under the situation of bracing or strutting arrangement loss of function (below be called free falling braking).
If in the time of in the different braking scheme, must applying different braking power; Therefore, for example, for the free falling braking, braking force must keep the whole gravity of car, because counterweight no longer provides part compensation, i.e. balance.If braking equipment is arranged the redundant product that comprises two braking equipments, stop so promptly also only guaranteeing that therefore for the reason of accident protection, for example stop the place at floor, the result must can provide the twice braking force by a braking equipment.
When if braking equipment utilizes frictional engagement work, the normal force that braking equipment must provide is also different with different braking forces.Therefore, for example, utilize braking equipment layout and each braking equipment of comprising two braking equipment products to have two braking loops (brake circuits), each braking loop remains on the required normal force FLN in floor station with car
HBe at least 6150N.
FLN
H=(rated load, nominal load/2xg)/(μ x2x2)
FLN
H: utilize 50% counterweight balance that car is kept static required confining force
Rated load, nominal load: the acceptable load of car (for example: rated load, nominal load=1000kg)
G: acceleration due to gravity, 9.81m/s
2
μ: friction coefficient (for example: μ=0.2)
FLN
H＝(1000/2×g)/(0.2×2×2)＝6150N
Under situation about promptly stopping, now at braking equipment only, the requirement that the car load car according to 125% can further not quicken at least.In above-mentioned example, correspondingly required normal force is increased to:
FLN
N=(1.5 * rated load, nominal load/2 * g)/(μ * 1 * 2)
FLN
N＝(1.5×1000/2×g)/(0.2×1×2)＝18600N
For free falling braking, also need making at full capacity under the effect of all products that can provide of braking equipment, car safety ground slows down.Use above-mentioned example, and suppose that the weight of empty car is approximately 80% of rated load, nominal load, the required minimum deceleration degree of car is 0.2g, and the result brakes the required normal force FLN of car
FFor:
FLN
F=(1.8 * useful load * (g+a))/(μ * 2 * 2)
FLN
F＝(1.8×1000×1.2g)/(0.2×2×2)＝26500N
Yet, on the other hand, free falling is braked required maximum normal force and is not always played a role in different braking schemes, because these power are carried braking equipment and track on the one hand powerfully, discharging braking equipment on the other hand needs big energy---for security reasons automatically to apply when delivery of energy is lost---during the normal direction move operation.
Therefore, so far for this reason, for different braking schemes provides corresponding independently braking equipment product.
Therefore, for example, the pure braking equipment of braking lift car is for example disclosed by DE3934492A1, wherein the movably braking on wedge-shaped surface lining (brake lining) motion that is raised device or lift car is moved, automatically regulates movably to brake serving as a contrast then under the effect of the frictional engagement of guide rail.Only carry out this adjusting motion by pressure spring, this pressure spring can offset magnet so that the normal force of control action on movably braking serves as a contrast.This braking equipment is not suitable for the maintenance lift car, because it needs the lift car ballistic motion.
EP1528028A2 has described the maintenance braking equipment, and the passive braking lining that wherein resets has replaced the initiatively function of braking lining, if it is discharged by actuator by compression spring institute's bias voltage and the loss of function of braking lining against guide rail.Based on this purpose, braking equipment is installed into suspension.In this braking equipment, when braking equipment was driven or discharge, always identical normal force (it is limited by spring pressure) was applied on the braking lining.Therefore keep braking function if this braking equipment is not only taken over, and take over when promptly stopping braking function, normal force must be enough big so that braking, so normal direction maintenance function needs the normal force of super large.Yet the normal direction confining force of this super large loads braking equipment and guide rail unfriendly, and needs high level actuator energy to discharge the spring of powerful ground bias voltage.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of braking equipment, it can apply different normal force and be used for keeping and braking on the braking lining when braking equipment starts.In addition, be used to that the normal force that keeps and being used to discharges or the actuator that do not start braking equipment can be designed to be minimum.
The present invention proposes a kind of braking equipment that is used for keeping and braking the lift car of lift facility, this braking equipment is arranged to brake relatively guide rail and moves on two moving directions along the braking guide rail, comprise the braking lining that is installed on the fabricated section, when braking equipment is braked guide rail movement relatively with the frictional engagement of braking guide rail under automatically regulate and tensioning first tightening device at least one in two moving directions of braking lining, first tightening device will be braked the lining tensioning by tensile force and be resisted against on the guide rail, and first tightening device can discharge by actuator.Do not discharging, under the starting state, braking equipment bias voltage first tightening device, fabricated section and braking serve as a contrast under the effect of biasing force against the braking guide rail, wherein, braking equipment is created in the confining force that acts on two moving directions when being in static time braking lining, this confining force is roughly limited by biasing force, wherein, do not discharge at braking equipment, under the starting state and in the relative motion subsequently at least one in moving direction of braking equipment, the part of braking lining is tensioning first tightening device more automatically, therefore produce the tensile force that acts on fabricated section and the braking lining, therefore and producing braking force against the moving direction of braking equipment, this braking force is roughly limited by slack-free tensile force again.
In normal running, the actuator of startup discharges the braking lining, promptly removes the braking lining from the braking guide rail, therefore interrupt the frictional engagement between them, so braking equipment does not apply any brake action.Therefore braking equipment is not activated.If hill holder is not activated, first tightening device will be braked to serve as a contrast to be squeezed in and also therefore start braking equipment on the braking guide rail so.Be applied to normal force FLN that removable braking serve as a contrast by tightening device this moment
HOr biasing force limits it and the friction force of braking between the guide rail.According to the present invention, braking equipment is constructed by this way, promptly is released and braking equipment when not moving when actuator, roughly corresponding to biasing force and act on two confining forces on the moving direction and can be produced.Biasing force realizes by this way with relevant slipper fabricated section that by the braking lining promptly friction force or braking force can be used to keep, and particularly brakes the scope of the confining force that serving as a contrast does not slip away provides.Therefore biasing force can be held minimum, because when braking equipment moves maybe when the confining force provide is provided, braking lining braking guide rail is relatively automatically regulated, promptly, motion by this way: first tightening device further is tensioned, and the normal force that first tightening device is applied on the braking lining increases until the normal force FLN that obtains (being enough to be used in promptly stopping) generation
NOr braking force.By regulating, be understandable that in this example, especially, the braking lining that has contacted the braking guide rail utilizes the motion of frictional engagement, or the motion of cooresponding control setup, thereby makes the tightening device of winning by tensioning further.
Alternatively, brake equipment comprises that first regulates restraint device, and this first adjusting restraint device hinders the adjusting motion that braking serves as a contrast at first setting position, and the adjusting motion that braking is served as a contrast at second setting position becomes possibility.Be applied in the maintenance function as braking equipment, the first adjusting restraint device is switched to first desired location so.Switch to first desired location by regulating restraint device, prevented the adjusting motion of removable braking lining effectively.Preferably this can realize by the locking piece that is supplied with energy, thereby when delivery of energy was lost, first regulates restraint device automatically was switched to second desired location or is switched to second desired location under the effect of the adjusting motion that removable braking serves as a contrast.Alternatively, the power associated is left with limiting extruding in the position of locking piece, thereby locking piece automatically switches to second desired location before lining slides.
For promptly stopping, actuator and locking piece are not activated, so elevator cab movement or locking piece self do not start, and leave power because the braking lining slides and apply cooresponding extruding on the locking piece that automatically switches.First tightening device is resisted against on the braking guide rail braking lining motion, the braking guide rail under the effect of frictional engagement to adjusting.Therefore, first tightening device is tensioned, thereby makes the normal force that is applied on the braking lining be increased to the normal force FLN that is enough to be used in promptly stopping at least
N
Stop for floor, actuator does not start when static when lift car is in, so locking piece is activated.First tightening device makes the motion of braking lining be resisted against on the braking guide rail once more.Yet, regulate restraint device owing to be arranged on first of first desired location, removable braking lining can not be regulated, thereby makes the normal force that applies again on it be limited to the littler normal force FLN that is enough to be used in keeping
HOr biasing force.Therefore, the increase of the normal force that when removable braking serves as a contrast adjusting motion, applies extraly by tightening device, first tightening device was applied to the normal force difference on the removable braking lining between floor stopped and promptly stopping.
According to braking equipment of the present invention, therefore when stopping, floor on removable braking lining, applies littler normal force FLN
H, and the adjusting motion corresponding to removable braking lining automatically has higher normal force FLN when promptly stopping
N
Therefore, braking equipment of the present invention and braking guide rail are loaded in normal running littlelyr.In addition, actuator can be designed to this littler normal force FLN
H
Alternatively, do not have the first adjusting restraint device also can obtain identical advantage, it has reduced structure and has controlled expense, and has increased the security protection that antagonism was lost efficacy.
According to the first embodiment of the present invention, thereby braking equipment comprises multi-part braking lining (multi-partlining), rather than comprise that first regulates restraint device, comprise fixing braking lining and removable braking lining particularly, fixing braking lining and removable braking lining discharge by the first tightening device bias voltage and by actuator together, wherein advantageously when the first braking lining and braking guide rail start formation when contacting removable braking serve as a contrast by the second tightening device against and braking on the guide rail.Multi-part braking this moment lining works at the common brake area of braking guide rail.
If this braking equipment performance keeps function, so only the bias effect of second tightening device is on removable braking lining.This preferably is selected as relatively little, thereby the main portion of the power that first tightening device applies when actuator is not activated of making act as the normal force that is applied on the fixing braking lining.Especially, this normal force depends on elasticity and the fixedly braking lining of release and the gap between the braking guide rail of second tightening device, and can be selected accordingly.In each case, the main portion that is designed to normal force acts on the fixing braking lining, therefore can realize maximum confining force.Therefore, the normal force of minimum works when remaining on the floor station on the other hand, must be conditioned and need not removable then braking lining.For this purpose is that the be fixed frictional engagement of braking lining and braking guide rail of motion necessary, that braking equipment is braked guide rail relatively prevents.
On the contrary, when promptly stopping, the beginning of removable braking lining contact with the braking guide rail, when fixing braking lining also during contact braking guide rail removable braking lining by the second tightening device bias voltage and protrude accordingly and surpass fixing the braking and serve as a contrast.Therefore with the effect of the frictional engagement of braking guide rail under be conditioned, tensioning first tightening device then, the normal force that therefore acts on the removable braking lining is increased to the higher normal force FLN that is enough to be used in promptly stopping
NThis moment, fixing braking lining preferably no longer contacted with the braking guide rail, and power is produced by removable braking lining fully.Yet emergency braking function also is guaranteed in the time may skidding off the holding position, because the removable braking lining of being lived by less power extruding is conditioned by the frictional engagement with the braking guide rail.
Therefore, during keeping, the braking equipment of present embodiment also applies lower normal force FLN on fixing braking lining and removable braking lining
H, and when promptly stopping, automatically obtaining the cooresponding higher normal force FLN of adjusting motion with removable braking lining
NBecause the normal force braking lining that is fixed substantially absorbs during keeping, can obtain the whole biasing forces or the normal force that are used to keep approx.
Therefore, in two embodiment, the adjusting motion of (, when actuator is not activated, lift car is in when static) removable braking lining when floor stops, the increase of sinking and acting on the normal force on the braking guide rail of car is prevented from.In addition, can detect the possible slip that never reckons with need be the time by sensor or switch.Therefore, can obtain reliable state with respect to the safe condition of braking equipment.If for example owing to the wearing and tearing or the sclerosis of the fixedly braking lining that car is remained on floor, hold facility reduces, this can cause car to slide, and therefore the adjusting that this can cause removable braking lining is held then.Because this can be detected by sensor or switch, unsafe condition can not occur, because can begin to safeguard or repair braking equipment in time.
Braking equipment preferably is arranged in the lift car place.Car is directed along guide rail, and guide rail is simultaneously also as the braking guide rail.Two or more braking equipment products are arranged in pairs that advantageously wherein at least one corresponding braking equipment product acts on the guide rail in each case.This is favourable, because lift car is directly fixed in this arrangement, therefore the car place vibration processes can not occur in the loading and unloading process.Alternatively or extraly, braking equipment also can be arranged in the actuator place, brake wherein that guide rail is braked dish or brake wheel limits.Thereby actuator can be arranged in the axle or the outside separatedly, realizes the operation of lift car then by bracing or strutting arrangement.Obviously, actuator also can directly appear at the car place or also appear at the counterweight place.Difference can appear in relative motion apparently between braking equipment and the braking guide rail.Therefore, the braking guide rail can be installed in the fixed position, and braking equipment can be arranged in the fixed position along braking guide rail movement or braking equipment, wherein brakes guide rail or brake disc moves along braking equipment.
In the further preferred embodiment of the present invention, braking equipment also promptly stops the braking function except possessing, and also possesses the free falling braking function.This advantageous particularly when braking equipment is arranged in the car place.
For this purpose, particularly preferred embodiment comprises that second regulates restraint device, and it limits the adjusting motion that removable braking serves as a contrast at first desired location, makes the further adjusting motion of removable braking lining become possibility at second setting position.
When promptly stopping situation, second regulates restraint device switches so that be activated as the locking piece that the first adjusting restraint device preferably is supplied energy, thereby when delivery of energy is lost, regulate that restraint device is automatically switched to second desired location or under the effect of the effect of the adjusting motion of removable braking lining, be switched to first desired location, the adjusting motion that serves as a contrast in the removable braking of first setting position is constrained to specific largest motion.As previously mentioned since with the frictional engagement of guide rail, removable braking lining is automatically regulated until second and is regulated the further adjusting motion that restraint device prevents removable braking lining.Second regulates the normal force FLN that occurs when the predetermined maximal regulated limit movement of restraint device promptly stops the biglyyest
NThereby undue braking deceleration when avoiding carrying is avoided the high capacity of braking equipment, guide rail and lift car accordingly.
On the contrary, at the free falling glancing impact, higher braking force must apply, and must consider that the load of following is so that prevent the crash of lift car.For the free falling braking, therefore the second adjusting restraint device is not activated, thereby makes removable braking lining further regulate therefore further tensioning of first tightening device.Therefore normal force FLN on the removable braking lining can automatically appear acting on
FIncrease and the correspondence that acts on the braking force on the lift car increase.Regulate restraint device and preferably construct by this way, promptly even during braking it is not activated yet, when for example detecting undermoderated when promptly stopping.Therefore, when needing, normal force can further be increased during braking.Second amplification stage allows braking force accurately to increase with respect to different braking situations.Do not have the braking equipment of second amplification stage obviously also to be used for the free falling braking, it is excessive wherein braking force to occur in urgent shut-down operation.This is an advantageous embodiments, because do not need to regulate restraint device, yet low biasing force can be used in maintenance.
In optimal way, braking equipment comprises the 3rd tightening device, and the 3rd tightening device is at this removable braking lining of adjusting motion bias voltage of removable braking lining.Therefore guarantee advantageously that removable braking lining always is arranged on its non-adjusting position in move operation.Promptly stopping or the free falling glancing impact, removable braking lining can be conditioned and be resisted against on the 3rd tightening device, for this purpose a little less than preferably the 3rd tightening device is configured to suitably.
Preferably the rigidity of first tightening device increases gradually.Therefore, regulate the normal force that increases with removable braking lining and rise, thereby make and promptly stopping or the free falling glancing impact can obtain significantly high braking force, occur big adjusting motion at this moment.On the other hand, in order to discharge the braking lining, when first tightening device still has lower rigidity, only consume the actuator energy of relatively small amount.
For this purpose, first tightening device can comprise that restricted maintenance tightening device of mobile tensioning and rigidity are higher than the amplification tightening device that keeps tightening device.Keep tightening device and amplify tightening device preferably being connected in series, for example make when the braking lining discharges actuator originally at softer maintenance tightening device operation, and because this purpose needs still less energy.If its tensioning move and finish (this move by advantageously so sizing make it correspond essentially to gap between braking lining and the guide rail), then, for example corresponding to the adjusting motion of removable braking lining, harder amplification tightening device must be tensioned, and this increase is used for promptly stopping or the normal force of free falling braking.Amplify tightening device and also can wholely apparently be integrated in the element of braking equipment, be configured to elasticity elastic force suitably because for example brake pliers.
In order to understand the adjusting motion of removable braking lining, can be by the wedge mounted on surface at braking pliers place, the braking pliers is loaded by first tightening device and actuator, and wherein the wedge surface produces the adjusting motion of removable braking lining.If removable braking lining is followed the motion of the relative braking equipment of braking guide rail under the effect of frictional engagement, the release of vertical with it braking pliers is forced on the wedge surface when the stroke motion of removable braking lining so.This release is moved and be can be used in tensioning first tightening device.
Alternatively, the braking lining is installed on the braking pliers by eccentric disk, thereby makes eccentric disk produce the adjusting motion of braking lining.When if eccentric disk for example utilizes frictional engagement to follow the braking guide rail with respect to the motion of braking equipment by cam, eccentric disk rotates with the stroke motion of removable braking lining so, and changes the spacing that removable braking serves as a contrast the fulcrum of relative eccentric disk this moment.The change of this spacing can be used in tensioning first tightening device.Advantageously eccentric disk has low rigidity zone.Effectively therefore the main portion of biasing force is caused by the braking lining, can obtain confining force with the biasing force of minimum.
Braking equipment of the present invention comprises two braking loops, and each braking loop has removable braking lining and first and regulates restraint device and/or scalable braking lining.Two brakings this moment loop utilizes two brake areas to work on the braking guide rail, and brake area is advantageously formed by the apparent surface of the web of the rail (rail web).Therefore two braking loops in position locate to clamp the braking guide rail or the web of the rail.The scalable braking lining of two braking loops can be by independently first tightening device and actuator load.Yet advantageously, the removable braking lining of two braking loops is loaded by first common tightening device and common actuator, and this advantageously reduces constructions cost and space requirement.Alternatively, a quilt obviously also can only braking in the loop is equipped with removable braking lining and regulates restraint device and/or scalable braking lining, and another braking loop is configured with fixing braking lining simultaneously.
For the identical moving direction or the different moving direction of lift car, the removable braking lining of two braking loops guide rail is relatively automatically regulated.
If the braking lining is regulated when different moving direction, the braking force increase can occur on both direction so, can realize advantageously that wherein the different adjustment path increases with different braking forces.If for example lift car is by balance partly, when bracing or strutting arrangement is harmless, according to car load, different emergency braking loads can appear.On the contrary, when two removable brakings linings during in identical moving direction adjusted, the braking force increase can increase in one direction.
The invention still further relates to a kind of method that keeps and brake the lift car in the lift facility by braking equipment, braking equipment is arranged to brake relatively guide rail and can brakes guide rail along this and move on two moving directions, braking equipment comprises the fabricated section with braking lining, the fabricated section that wherein has the braking lining can be discharged by actuator, braking equipment also comprises first tightening device, wherein in the not release of braking equipment, under the starting state, fabricated section and braking lining are being braked on the guide rail by the biasing force against by first tightening device, therefore generation acts on two confining forces on the moving direction when static when braking equipment is in, wherein: by the relative motion subsequently at least one in moving direction of braking equipment, therefore first tightening device produces the tensile force that acts on fabricated section and the braking lining, and first tightening device is braked at least a portion tensioning more automatically of lining.
Description of drawings
According to the example of the embodiment of dependent claims and following explanation, further purpose, advantage and feature will be apparent.Based on this purpose, partly schematically as follows:
Fig. 1 shows half of braking equipment of the corresponding diagram 3 under the release position;
Fig. 2 is presented at half of braking equipment of the corresponding diagram 3 that floor stops to locate;
Fig. 3 shows the braking equipment that promptly stops the first embodiment of the present invention under the situation;
Fig. 4 shows half of braking equipment of the corresponding diagram 3 under the free falling braking situation; With
Fig. 5 shows the braking equipment of the further embodiment of the present invention with brake portion 5A-5D.
The specific embodiment
Fig. 1-4 shows the maintenance of the first embodiment of the present invention and promptly stops braking equipment.In the braking equipment that Fig. 3 shows, it comprises two braking loops (brake circuits) generally.Because be equal to as for the difference of following explanation, two brake hoop line structures, so Fig. 1,2 and 4 only shows left side braking loop, for different braking schemes is described.The function of right side braking loop is similar substantially.Zuo Yong parts are represented with identical reference marker in the accompanying drawings in the same manner.
As seen, particularly, in Fig. 3, each braking loop of the braking equipment of the preferred embodiments of the present invention comprises braking tong arm 10, and it is installed in pin 11 so that motion rotatably.The maintenance tightening device of first compression spring, 3.1 forms is flexibly braked tong arm 10 bias voltages to guide rail 1 with two, can move vertically at guide rail 1 place's lift car (showing that braking equipment is fixed to lift car).Guide rail 1 has two brake area 1a, 1b.The actuator of electromagnet 4 forms can overcome the stress relief braking tong arm 10 of first compression spring 3.1, and in this example simultaneously as butt thing (abutments), promptly limits the strained movements of first compression spring 3.1.
Scotch fabricated section 13 is directed so that can move towards guide rail 1 at each braking tong arm 10 place, and flexibly installed by the enhancing tightening device of the 4th compression spring 3.2 forms on this direction, the rigidity of the 4th compression spring 3.2 is greater than the rigidity of first compression spring 3.1.The first and the 4th compression spring 3.1,3.2 forms the first tightening device chain or first tightening device 3 with braking tong arm 10.
In scotch fabricated section 13, scotch 12 can move on the direction of relative movement between lift car and the guide rail (guide rail is between two butt things), and this moment is by wedge surface 9 mandatory guidances.In the braking loop in left side, wedge surface 9 is oriented to when scotch 12 scotch 12 when scotch fabricated section 13 moves up scotch fabricated section 13 is squeezed on the 4th compression spring 3.2.In right side braking loop, when scotch scotch when the scotch fabricated section moves down is squeezed in the scotch fabricated section on the 4th compression spring.
In the reference position of butt thing restriction, the 3rd tightening device of Ruo the 3rd compression spring 8 forms is limited in scotch 12 foot (left side braking loop) or the topmost (right side braking loop) of scotch fabricated section 13 relatively.In addition, in this example, second of wedge 7.1 forms are regulated restraint device 7 and are set up, and it is protruding entering in the wedge surface 9 under the effect of the power of the active locking piece of other electromagnet 7.2 forms, and restriction scotch 12 moving along wedge surface 9.If other electromagnet 7.2 is activated, it will be expressed to wedge 7.1 and make scotch 12 can not move out its initial, set position (Fig. 1,2) in the wedge surface so, only in intermediate settings position shown in Figure 3.If other electromagnet 7.2 is not activated, scotch 12 can make wedge 7.1 move out wedge surface 9 and move to the top (left side braking loop) that it is set so, as shown in Figure 4.In the example shown, the scotch of right side braking loop is still at its upper position, because guide rail makes it remain on this position with respect to the direction that relatively moves of braking equipment.
In illustrated example, left side braking loop has long wedge surface 9.This provides the tensioning possibility of big accordingly adjusting possibility and big accordingly tightening device 3, therefore sets when holding and can obtain high accordingly maximum normal force FLN when left side scotch 12 moves to top
FIn contrast, braking loop in right side has shorter wedge surface.Therefore, when the direction that relatively moves of the relative braking equipment of guide rail was moved on the contrary, maximum obtainable normal force was less.Therefore can design the power grade according to the corresponding mobile direction.
In scotch 12, removable braking lining 2 is directed so that removable towards guide rail 1, and is flexibly installed by second tightening device of second compression spring, 6 forms on this direction.
Except the butt beyond the region of objective existence of restriction scotch 12 motion, fixing braking lining 5 is disposed in scotch fabricated section 13 places, makes when second compression spring 6 is lax them form certain obstruction with respect to the mating surfaces of removable braking lining 2 and guide rail 1.
Below according to the function of the braking equipment of the detailed first embodiment of the present invention of order of Fig. 1-4.
Discharge braking
Fig. 1 shows that the left side braking loop of braking equipment is in the state that discharges or be not activated.Because this purpose, electromagnet 4 is supplied energy, braking tong arm 10 is drawn on the left side as the butt thing that leans against it, and this moment the biggest ground tensioning first compression spring 3.1.Braking tong arm 10 does not contact guide rail 1 and brake area 1a for removable braking lining 2 under release position with fixing braking lining 5 with respect to the size in the adjusting path of guide rail 1.Therefore second compression spring, 6 lax and removable braking linings 2 are arranged on its reference position of protruding most from scotch 12.The 3rd compression spring 8 similarly loosens, and makes scotch 12 be set in the reference position of foot.In addition, be compressed the 4th strong compression spring 3.2 and loosened, because there is not masterpiece to be used on the scotch fabricated section 13.
Under these release position, electromagnet 4 only must be supplied the energy of such amount, promptly oppresses the energy of first compression spring 3.1 the biglyyest.Therefore, particularly, there is no need to overcome the 4th compression spring 3.2.Lift car and the braking equipment that is fixed to lift car can relative guide rail 1 vertical motions and are accessible.
Floor stops
Fig. 2 is presented at the braking equipment of the left side braking loop that floor stops to locate.After the bracing or strutting arrangement that the driver element (not shown) by the floor place drives made lift car when static, electromagnet 4 was disengaged activation (not being activated).Therefore first compression spring 3.1 partly loosens and is squeezed on the braking tong arm 10, and the result brakes tong arm 10 around pin 11 rotations.Removable like this braking lining 2 beginnings contact with guide rail 1.Because second compression spring 6 relatively a little less than, under the effect of first compression spring 3.1, it make braking tong arm 10 around pin 11 further to guide rail 1 rotation, second compression spring is oppressed to begin formation until fixing braking lining 5 with guide rail and contacts.Braking tong arm 10 is further rotated until the 4th compression spring 3.2 and is forced into such degree, and the spring force of promptly relative first compression spring 3.1 applies a degree that equates big counter torque.
First compression spring, 3.1 biased feasible this position spring power F1 that are in still are applied on the lever arm that is positioned at pin 11 tops of braking tong arm 10.As a result, the lever arm that is positioned at the braking tong arm 10 of pin 11 belows applies power F2 on the 4th compression spring 3.2.Because the ratio i of last lever arm and the following lever arm of braking tong arm is selected as greater than 1, so amplifies first compression spring 3.1 and be applied to power on second compression spring 3.2, made F2=ixF1＞F1.Advantageously, so electromagnet 4 only must provide low relatively power so that first compression spring 3.1 of compressing bias voltage and thereby discharge braking equipment.
The tensioning of second compression spring 6 is moved the normal force N1 that s produces and is acted on the removable braking lining 2 until fixing braking lining 5 contact guide rails 1.Because it is low relatively that the spring stiffness c6 of second compression spring 6 is selected as, therefore similarly this normal force is low relatively, so N1=c6xs.
Because normal force FLN
HAct in the fixing braking lining 5, corresponding to the live part of power F2 be: FLN by the normal force that second compression spring 3.2 is applied on the scotch fabricated section 13
H=F2-N1 ≈ ixF1.
In the example of embodiment, lift car is remained on the floor station by the braking equipment product that two structures of the preferred embodiment of the present invention are equal to, thereby makes that the gravity G or the power difference between counterweight and the car of lift car serves as a contrast 5 with 1/4th fixedly brakings that are applied to the braking loop of braking equipment in each example.Select the bias voltage of first compression spring 3.1 now, thereby make the spring force that it is applied on the braking tong arm 10 at the place, holding position be:
F1＝1/ix[G/(4μ)+c6xs]. (1)
Wherein μ represents the coefficient of static friction between guide rail 1 and the fixing braking lining 5.For clearer, equation is not considered safety factor in (1).
Therefore lift car is maintained at common floor station by the frictional engagement between fixing braking lining 5 and the guide rail 1 substantially, and removable braking lining still is in reference position shown in Figure 2.
Unfixing braking lining 5, whole gravity G will only be supported by guide rail 1 by removable braking lining 2.Because only normal force N3=cos (angle of wedge) xF2＜F2 acts on the wedge surface 9, in addition, the lip-deep friction coefficient of wedge is relatively little so that guarantee the easy movability of scotch 12 in scotch fabricated section 13, scotch 12 is caused sliding on wedge surface 9 under the effect of the above-mentioned spring force F1 of corresponding equation (1), and this causes, and lift car is sagging when braking equipment is remained on the floor station causes normal force N3 enough to increase until regulating (below will describe in detail).Alternatively, the suitably higher bias voltage of first compression spring 3.1 need be provided so that suitably increase F2=ixF1.Yet electromagnet 4 will be supplied higher accordingly energy under release position, in order to make this prudent power of trying hard to keep.
In the second embodiment of the present invention (not shown), provide first to regulate restraint device (rather than fixing braking lining 5), its function and second is regulated restraint device 7 and is equal to.First regulates restraint device fully hinders scotch 12 along the moving of wedge surface 9, and, scotch 12 is fixed its initial desired location that is.First regulates restraint device starts removable braking lining 2, it no longer regulates scotch 12 moving along wedge surface 9 now, but the fixing braking lining of conduct, thereby make it possible to avoid the high bias voltage (please refer to first embodiment above stated specification) of lift car at sagging or first compression spring 3.1 at place, floor station.
Promptly stop
Fig. 3 shows the braking equipment when promptly stopping.As previously described, the lift car in the example of embodiment has the braking equipment product of the first embodiment of the present invention that two structures are equal to, and for example, each acts on the guide rail of arranging on the car both sides 1.Promptly stopping under the situation, if for example when the motor lock loss of function of driver element or control fails, the lift car with harmless bracing or strutting arrangement can be braked equipment and decelerate to static.In addition, based on the reason of safety, even a loss of function in the requirement braking equipment product, braking equipment self still can further not quicken at least under overload condition.
(have under the situation of two braking equipment products) in this case, therefore, each braking equipment product must be in the excessive gravity that supports lift car independently
The position.As a result, compare with the aforementioned floor station that remains on, each braking loop must apply higher significantly friction force on guide rail 1.Under normally loaded 125% overload condition, and the gravitational difference between counterweight and the car is normally loaded 50% o'clock, therefore requires braking force to increase by 3 times coefficient, therefore also increases normal force accordingly.
Continue from the release position of Fig. 1, under situation about promptly stopping, electromagnet 4 is disengaged activation (not being activated) while lift car and moves along guide rail 1.Therefore first compression spring 3.1 makes braking tong arm 10 rotate to guide rail 1 around pin 11.In this junction, by removable braking lining 2 beginnings and guide rail 1 wipe contact of bias voltage accordingly of second compression spring 6.
Then, the normal force that second compression spring 6 produces produces friction force, and this friction force acts on the removable braking lining, is used to make it at the sense of motion of braking equipment with respect to guide rail 1.If lift car for example moves straight down, removable then braking lining 2 moves up.Drive scotch 12 in this case, scotch 12 upwards slides on wedge surface 9 then.
Because wedging action, scotch 12 drives scotch fabricated section 13 towards the other places then.On the one hand, therefore, fixing braking lining 5 is prevented from still contacting with guide rail 1.Serving as a contrast 2 frictional engagement by removable braking exclusively further produces.On the other hand, therefore scotch fabricated section 13 compressings the 4th compression spring 3.2 that moves outwardly also oppresses first compression spring 3.1 by braking tong arm 10.Therefore brake the power that tong arm 10 overcomes first compression spring 3.1 again, the while is according to corresponding structure first and the 4th compression spring 3.1,3.2 and comprise that first tightening device 3 of resilient tong arm 10 is oppressed.By regulating the motion of removable braking lining 2, that is, the stroke on the guide rail direction, first tightening device 3 be by tensionings extraly, thereby make it be applied to normal force on the removable braking lining and the braking force of braking equipment increases.
In this case, braking tong arm 10 is against the operation of butt thing, and the butt thing is formed and prevented the further compression of first compression spring 3.1 by the end face of electromagnet 4.If present removable braking lining 3 further moves up with scotch 12, and further promote scotch fabricated section 13 in this case down, so the 4th, harder compression spring 3.2 and the spring stiffness that is limited by braking tong arm 10 or other parts of braking equipment are further oppressed.By from exclusively arrange in regular turn first, the switching of more soft the 4th, harder compression spring 3.1,3.2 to the 4th compression springs 3.2, the rigidity of first tightening device 3 is increased gradually.
Under situation about promptly stopping, the second other electromagnet 7.2 of regulating restraint device 7 is activated.This wedge 7.1 squeezes in the wedge surface 9, and wedge surface 9 restriction scotches 12 move along wedge surface 9, and makes removable braking lining 2 stop at the intermediate settings position.
In this intermediate settings position, braking loop in left side remains on the normal force of floor when stopping applying under the situation that electromagnet is not activated to be higher than on guide rail 1, begun static back at lift car: on the one hand, removable braking lining 2 with the frictional engagement of guide rail 1 under regulate self, and more powerful ground of situation tensioning first tightening device 3 that stops than floor in this case.Move by selecting angle of wedge degree and/or the predeterminable extra tensioning of length.On the other hand, in case braking tong arm 10 against the rigidity of electromagnet 4, the first tightening devices 3 more remarkable high value that just rises suddenly, first compression spring 3.1 no longer is compressed.Further regulate and fully converted to harder compression, the compression of the 4th compression spring 3.2.The friction coefficient that it is evident that the consideration expectation is selected angle of wedge degree, to guarantee independently adjusting.
Therefore, at lift car under the situation that guide rail moves, removable braking lining 2 with the frictional engagement of guide rail 1 under automatically regulate, tensioning first tightening device then makes that acting on the friction force that normal force on the removable braking lining and braking equipment apply increases.Yet the energy that electromagnet 4 only need be supplied relative a small amount of discharges braking equipment, because this purpose, only first compression spring 3.1 must be oppressed the biglyyest.Thereby, it is evident that originally the removable braking lining of regulating moves on the entopic direction that is for example limited by spring 8 before discharging braking equipment.This can realize that braking equipment moves on the direction opposite with braking.Thereby, as shown in Figure 3, please note that wedge surface, left side is fitted to each other on their length with relative wedge surface, right side, feasible in each case when braking equipment is mobile on the direction opposite with braking direction the actuator place a. g. appears.
Fixing braking lining 5 discharges by first tightening device, 3 bias voltages with by electromagnet 4 together in company with removable braking lining 2.Only be not activated (not being activated) when lift car is static when electromagnet 4, fixing braking lining 5 beginnings contacts with guide rail 1, because removable braking lining is begun to contact with guide rail 1 before serving as a contrast 5 to guide rail 1 and fixing the braking by second compression spring, 6 bias voltages.Under the situation that floor stops, they prevent sinking of lift car, but do not have this function in situation about promptly stopping, thereby make the numerical value that removable braking lining 2 is regulated and therefore braking force is increased to 7 restrictions of the second adjusting restraint device.When the braking equipment that uses Fig. 3 to show, only fixing braking lining is loaded significantly under the situation that floor stops, wherein promptly stop or the situation of free falling under, braking force is imported in an opposite side in a side with by fixing braking lining by removable braking lining.This is that relatively directed structure by the wedge surface causes.
As shown in Figure 3, at lift car under the situation of the different directions that moves of guide rail, the removable braking lining 2 of two braking loops is automatically regulated: because the wedge surface of reversal dip, the removable braking lining of left side braking loop was carried out and is regulated when lift car was braked during moving up, on the contrary, the removable braking lining execution of right side braking loop is regulated when taking place promptly to stop during lift car moves up.Different size by two braking loops, particularly, mass dryness fraction by the angle of wedge and/or wedge length surface and the 4th compression spring, different with moving direction execution down up braking forces is amplified, partial balanced elevator when driver element lost efficacy (wherein, lift car is connected with counterweight by harmless bracing or strutting arrangement) is drawn or its advantageous particularly during towards downslide up.Alternatively, under the situation of the identical moving direction of the relative guide rail of lift car, two braking loops also can be regulated, and therefore increase braking force when promptly stopping when appearance on a sense of motion especially powerfully.
If the friction force between guide rail 1 and the fixing braking lining 5 too small mistakenly (for example because fixing braking lining or way rub or the contaminated friction coefficient that causes reduce), further advantage of the present invention will be proved by self.If the hypodynamic words of friction that fixing braking lining applies under the situation that floor stops, lift car sink as described above so.Therefore, removable braking lining 2 is carried out high the arriving of pressure (adjusting by it is increased) of regulating until first tightening device 3 and is produced enough friction force.Like this, the present invention can obtain the braking equipment of safety-redundancy, and it automatically performs adjusting until enough friction force occurring so that keep lift car safely under the situation of the wrong too small friction force in place, floor station.Available sensors detects adjusting motion, therefore sagging detected at the floor station, and can begin suitable attended operation.
The free falling braking
Fig. 4 shows the braking equipment of free falling glancing impact.In essence, it takes place as aforementioned promptly stopping.Yet because no longer braked at least in part by the internal friction of counterweight and driver element at the situation lower support failure of apparatus and the lift car of free falling braking, braking equipment must time even higher braking force.
Based on this purpose, second regulates restraint device 7 is not activated, because other electromagnet 7.2 is not supplied energy.As situation about promptly stopping, when electromagnet 4 was removed activation, removable braking lining 2 beginnings formed frictional engagement with guide rail 1 and contact, and are dragged and carry out adjusting.Therefore the normal force that acts on the wipe contact between removable braking lining and the guide rail increases and increases accordingly braking force.Because wedge 7.1 is no longer by 7.2 brakings of other electromagnet, scotch 12 squeezes out it down on wedge surface 9 and therefore can move to (left side braking loop) desired location topmost, at this setting position topmost, it is braked in two butt things in the wedge fabricated section 13 another and stops.
Therefore the adjusting motion of removable braking lining 2 is increased and surpasses the numerical value of realizing when promptly stopping, adjusting motion the 4th compression spring 3.2 by removable braking lining 2 is oppressed, and adjusting motion is regulated restraint device 7 by second and stopped at the intermediate settings position in promptly stopping.As a result, the normal force that applies of the 4th compression spring 3.2 increases and therefore increases the braking force that acts on the guide rail 1.
Advantageously, only just realize maximum braking force at the free falling glancing impact, the opposite second adjusting restraint device that is activated when promptly stopping to be restricted to lower numerical value with braking force, has therefore avoided guide rail 1, lift car, braking equipment and passenger's unnecessary load-carrying.
Because on the direction only down free falling takes place, only a side of braking equipment (being the left side in the illustrated example) is supplied cooresponding adjustment travel usually, and opposite side has the adjustment travel that reduces accordingly.Yet, apparently, can use the other adjusting restraint device of brake value in the middle of being used to limit.
Preferably, the butt thing limits removable braking lining 2 adjusting motions with respect to scotch 12, to avoid second compression spring, 6 overloads.Also can be equipped with adjusting restraint device 7, be equipped with adjusting restraint device 7, can be expressed at a distance regulating restraint device if surpass the aforementioned brake application by spring of the confining force system that limits with brake application by spring system and use with electromagnet 7.2.
Optional embodiment
The removable braking that Fig. 5 A-5D is presented at the eccentric disk 12 ' driving under the different braking situation of " release " (Fig. 5 A), " floor stops " (Fig. 5 B), " braking " down (Fig. 5 C) and " braking up " (Fig. 5 D) serves as a contrast 2 optional adjusting.Therefore basic structure with braking equipment that this optional braking regulates only discuss the place different with first embodiment subsequently corresponding to aforementioned first embodiment.
In braking equipment, owing to have an optional adjusting, this removable braking lining 2 ' at eccentric disk 12 ' locate to be directed, the eccentric fabricated section 13 of eccentric disk 12 ' be installed in ' go up so that around pin 14 ' rotation.Eccentric fabricated section 13 ' to a certain degree corresponding to the scotch fabricated section 13 of first embodiment, the following structure that therefore has first tightening device, actuator etc. no longer shows.
Eccentric disk 12 ' with respect to eccentric fabricated section 13 ' flexibly limited by central spring or hill holder (not shown), and be biased into the desired location shown in Fig. 5 A by central spring or hill holder, make (Fig. 5 A) removable braking lining 2 when braking equipment discharges ' protrude surpass the contact level with the face cam 12 ' a of eccentric disk 12 ' captive joint, removable braking lining 2 ' also bear simultaneously first brakes and serves as a contrast 5 ' function.Braking loop in addition advantageously comprises fixing braking lining 5, and fixing braking lining 5 is connected with mode with the pattern with the pliers 10 with first tightening device, actuator etc. by compression spring 3.2.
When floor stopped, when lift car was static, eccentric fabricated section 13 ' be extruded by braking pliers (not shown) was as the scotch fabricated section 13 of first embodiment, because electromagnet is disengaged activation and is resisted against on the guide rail 1 by first compression spring.Thereby, the elastic region 6 of control cam 12 ' a ' can be pushed back such degree, promptly braking lining 2 ', 5 ' contact guide rail 1 also is delivered to guide rail 1 with the essential part of braking force (Fig. 5 B) in the friction lock mode.
If electromagnet is not activated when promptly stopping, when lift car moves with respect to guide rail 1 simultaneously, so eccentric fabricated section 13 ' move with respect to guide rail 1 successively.Thereby originally control cam 12 ' a forms friction lock with guide rail 1 and contact, and is dragged, wherein eccentric disk 12 ' with respect to eccentric fabricated section 13 ' pin 14 ' on rotate.Braking lining 2 ', 5 ' therefore carry out adjusting and oppress first tightening device, because eccentric fabricated section 13 ' engaged (Fig. 5 C, Fig. 5 D) by mechanical forward to move towards the other places.Thereby the shape of control cam 12 ' a limits continuous angle of rotation because the control cam by frictional engagement together rotate will brake until eccentric disk serve as a contrast 2 ', 5 ' be adjusted to such degree with respect to guide rail, promptly bear the degree of the main portion of normal force.Control cam advantageously be equipped with the friction auxiliary surface, for example roughening with the sclerosis.According to the present invention, the elastic region 6 of control cam 12 ' a ' constitute by this way, cam together rotated when promptly braking equipment moved with respect to guide rail 1, but then when stopping at floor the essential part of normal force will by braking lining 2 ', 5 ' bear.
Tensioning by cam and eccentric disk and eccentric fabricated section 13 ' move outwardly, the normal force that acts on the removable braking lining 2 increases, thereby make friction force or braking force (this moment basically by the braking that contact with guide rail 1 serve as a contrast 2 ', 5 ' transmit) be increased to such degree, promptly obtain the numerical value that is enough to be used in promptly stopping.
According to corresponding mobile direction (facing upward or downward), cam 12 ' a is in company with eccentric disk 12 ' limit the together tensioning of braking equipment.Therefore, for example, at glancing impact down, shown in Fig. 5 C, braking equipment roughly is tensioned, and sets up high braking force accordingly.Therefore, the free falling of lift car can access safety guard-safeguard.At glancing impact up, can know clearly that by Fig. 5 D braking equipment is by the cam 12 ' a tensioning relatively less that rotates up the negative side, therefore lower accordingly braking force is set.
In this embodiment and each example, can limit adjusting motion by regulating restraint device, because the locking piece that switches restriction off-centre rotatablely moves.Should be noted that careful cooperation this moment with accentric cam.In giving stable condition, the control cam place that maybe cam contacts with guide rail when the rotation restriction in the rotation restricted areas is similarly flexibly constituted.The diagram braking equipment is presented in the example of braking as car.Yet this equipment also can be used as the part of driving.In the same manner, it can be arranged in the counterweight place.In addition, in example, friction coefficient only has been discussed.Obviously, design also can be considered the poor of coefficient of static friction and coefficient of sliding resistance.
Claims (18)
1. braking equipment that is used for keeping and braking the lift car of lift facility, this braking equipment is arranged to brake relatively guide rail (1) and moves on two moving directions along braking guide rail (1), braking equipment comprises having braking lining (2,5) fabricated section (13) and first tightening device (3), fabricated section (13) is in company with braking lining (2,5) can be discharged by actuator together, do not discharge and starting state under, braking equipment bias voltage first tightening device (3), fabricated section (13) and braking lining (2,5) under the effect of biasing force against the braking guide rail (1), wherein be in static time braking lining (2 when braking equipment, 5) be created in the confining force that acts on two moving directions, this confining force is roughly limited by biasing force, it is characterized in that:
Braking equipment do not discharge and starting state under, in the relative motion subsequently at least one in two moving directions of braking equipment, braking lining (2,5) a part is tensioning first tightening device (3) more automatically, therefore produce and act on fabricated section (13) and braking lining (2,5) tensile force on, and therefore produce braking force against the moving direction of braking equipment, this braking force are roughly limited by slack-free tensile force again.
2. braking equipment as claimed in claim 1, it is characterized in that: braking lining (2,5) be multi-part, wherein the multi-part braking serves as a contrast (2,5) can act on the common brake area (1a) of braking guide rail (1), and the multi-part braking lining (2,5) that is arranged on the fabricated section (13) comprises fixing braking lining (5) and removable braking lining (2), and wherein fixing braking lining (5) can discharge by first tightening device (3) bias voltage with by actuator together in company with removable braking lining (2).
3. braking equipment as claimed in claim 2, it is characterized in that: the main portion that is in the confining force that biasing force limits when static when braking equipment works by fixing braking lining (5), and the main portion of the braking force of slack-free again tensile force qualification serves as a contrast (2) by removable braking and works when braking equipment moves.
4. as claim 2 or 3 described braking equipments, it is characterized in that: when fixing braking lining (5) and braking guide rail (1) when contact removable braking serve as a contrast (2) and braked on the guide rail (1) by second tightening device (6) against.
5. braking equipment as claimed in claim 2 is characterized in that: described braking equipment comprises the 3rd tightening device (8), and the 3rd tightening device (8) serves as a contrast this removable braking lining (2) of adjusting motion bias voltage of (2) at removable braking.
6. braking equipment as claimed in claim 2, it is characterized in that: removable braking lining (2) is installed in the fabricated section (13) by wedge surface (9), fabricated section (13) is driven by actuator, and wherein wedge surface (9) cause removable braking to serve as a contrast the adjusting motion of (2) when relative motion occurring between braking equipment and the braking guide rail (1).
7. braking equipment as claimed in claim 1, it is characterized in that: braking lining (2,5) be installed in the fabricated section (13) by eccentric disk (12 '), fabricated section (13) is loaded by first tightening device (3) and actuator, wherein eccentric disk (12 ') causes braking to serve as a contrast the adjusting motion of (2,5) when braking equipment is braked guide rail appearance motion relatively.
8. braking equipment as claimed in claim 7 is characterized in that: eccentric disk (12 ') has lower rigidity zone (6).
9. braking equipment as claimed in claim 1, it is characterized in that: braking equipment comprises that also first regulates restraint device, this first adjusting restraint device hinders braking lining (2 at first setting position, 5) adjusting motion, make the adjusting motion of braking lining (2,5) become possibility at second setting position.
10. braking equipment as claimed in claim 9 is characterized in that: described braking equipment comprises that second regulates restraint device (7), and it is at first setting position (Fig. 1-3; 5A-5C) the adjusting motion of the removable braking lining of restriction (2) is at second setting position (Fig. 4; 5D) make the adjusting motion of removable braking lining (2) become possibility.
11. braking equipment as claimed in claim 1 is characterized in that: the rigidity of first tightening device (3) increases gradually.
12. braking equipment as claimed in claim 1, it is characterized in that: described braking equipment comprises two braking loops, these two brake hoop route actuators and first tightening device (3) drive, wherein two each of braking in the loop have adjustable braking lining (2,5), or one of them braking loop has adjustable braking lining (2,5), and another braking loop only has fixing braking lining (5).
13. braking equipment as claimed in claim 12 is characterized in that: for identical moving direction or the different moving direction of braking equipment with respect to the braking guide rail, adjustable braking lining of two braking loops is automatically regulated.
14. braking equipment as claimed in claim 1, it is characterized in that: braking equipment is arranged in the driver element place, the braking rail configurations has drive pulley bonded assembly brake disc or the brake wheel with driver element, and wherein two moving directions are determined by brake disc or brake wheel rotation forward or backward radially.
15. braking equipment as claimed in claim 14 is characterized in that: described brake disc or brake wheel integrally are connected with the drive pulley of driver element.
16. braking equipment as claimed in claim 1 is characterized in that: braking equipment is disposed in the lift car place, and wherein braking guide rail is the guide rail of lift car, two moving directions by lift car roughly straight up or downward motion determine.
17. braking equipment as claimed in claim 16 is characterized in that: braking equipment is arranged in the lift car place in mode arranged in pairs.
18. method that keeps and brake the lift car in the lift facility by braking equipment, braking equipment is arranged to brake relatively guide rail (1) and can brakes guide rail (1) along this and move on two moving directions, braking equipment comprises having braking lining (2,5) fabricated section (13), wherein has braking lining (2,5) fabricated section (13) can be discharged by actuator, braking equipment also comprises first tightening device (3), wherein under the not release and starting state of braking equipment, fabricated section (13) and braking lining (2,5) braked on the guide rail (1) by the biasing force against by first tightening device (3), therefore generation acts on two confining forces on the moving direction when static when braking equipment is in, it is characterized in that: by the relative motion subsequently at least one in two moving directions of braking equipment, therefore first tightening device (3) produces and acts on fabricated section (13) and braking lining (2,5) tensile force on, first tightening device (3) is braked at least a portion tensioning more automatically of lining (2,5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06125391.0 | 2006-12-05 | ||
| EP06125391 | 2006-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101200259A CN101200259A (en) | 2008-06-18 |
| CN101200259B true CN101200259B (en) | 2010-09-29 |
Family
ID=37963801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101933203A Active CN101200259B (en) | 2006-12-05 | 2007-12-03 | Braking device for holding and braking a lift cabin in a lift facility and method for holding and braking a lift facility |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US8312972B2 (en) |
| EP (1) | EP1930282B1 (en) |
| JP (1) | JP2008143706A (en) |
| KR (1) | KR101393877B1 (en) |
| CN (1) | CN101200259B (en) |
| AT (1) | ATE476390T1 (en) |
| AU (1) | AU2007237346B2 (en) |
| BR (1) | BRPI0704603B1 (en) |
| CA (1) | CA2613124C (en) |
| DE (1) | DE502007004629D1 (en) |
| HK (1) | HK1124029A1 (en) |
| MX (1) | MX2007015323A (en) |
| MY (1) | MY143851A (en) |
| NZ (1) | NZ563353A (en) |
| RU (1) | RU2007145049A (en) |
| SG (1) | SG143226A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CA2613124A1 (en) | 2008-06-05 |
| BRPI0704603A (en) | 2008-07-22 |
| SG143226A1 (en) | 2008-06-27 |
| NZ563353A (en) | 2009-06-26 |
| RU2007145049A (en) | 2009-06-20 |
| AU2007237346A1 (en) | 2008-06-19 |
| MY143851A (en) | 2011-07-15 |
| US20080128218A1 (en) | 2008-06-05 |
| EP1930282A1 (en) | 2008-06-11 |
| AU2007237346B2 (en) | 2013-07-04 |
| KR20080052449A (en) | 2008-06-11 |
| MX2007015323A (en) | 2009-02-13 |
| BRPI0704603B1 (en) | 2020-04-28 |
| US8312972B2 (en) | 2012-11-20 |
| DE502007004629D1 (en) | 2010-09-16 |
| HK1124029A1 (en) | 2009-07-03 |
| ATE476390T1 (en) | 2010-08-15 |
| EP1930282B1 (en) | 2010-08-04 |
| KR101393877B1 (en) | 2014-05-15 |
| CN101200259A (en) | 2008-06-18 |
| JP2008143706A (en) | 2008-06-26 |
| CA2613124C (en) | 2014-09-23 |
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Effective date of registration: 20231204 Address after: No. 555 Xingshun Road, Jiading District, Shanghai Patentee after: SCHINDLER (CHINA) ELEVATOR Co.,Ltd. Address before: Swiss Helge Sitwell Patentee before: Inventio AG |